Polini Evolution 50cc 16hp zuma cylinder
Looking to stay stock cc, but make some serious hp? This polini evolution 50cc cylinder makes 2x the hp of your athena, or similar 70cc kit. Expect up to 16HP, from this quality crafted 50cc bore that can spin upwards of 13,300rpm.
You cant run this on an oem crank. You will need an aftermarket crank, or your stock one will likely grenade
Malossi Big Bore Kit Vertical ZUMA 89-01
Straight out of Malossi's Italian workshop. The malossi cast kit is a tried and true reliable sport kit, that will last a long time, and provide that low end grunt...
Polini Corsa for Yamaha Zuma '02-'11 & Yamaha Jog
$ 219.00 $ 305.00
The Corsa is Polini's revised 70cc sport cylinder. Extreme port timing, polished exhaust port and increased primary compression result in up to 2-3 hp more power as compared to standard...
Malossi Crank 10mm Yamaha Zuma '89-'01 and '02-'11
Malossi MHR Crankshaft for zuma HQ crankshaft for for sports and racing engines by famous Italian manufacturer Malossi. Excellent full-circle crankshaft with high primary compression, suitable for up to 16,000rpm. Top quality...
TFC elite ZX transmission kit
If your looking to dial in your trans, one one fail swoop, heres a 100% complete kit. Other companies offer an incomplete kit, but we've included the proper amount of...